﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Class2
    {
      

        Boolean flag = false;
        public static void Arr2(Boolean flag) {
            Console.WriteLine("请输入一个字符串");
            string temp = Console.ReadLine();
            if (string.IsNullOrWhiteSpace(temp))
            {
                Console.WriteLine("您没有输入或输入了空白字符串");
            }
            
        }
    }
}
